morris



(No Model.)

G. W. MORRIS.

GRAIN SEPARATOR.

Patented Dec. 4, 1888.

Ira 611 502:

UNITED STATES PATENT OEEIcE.

GEORGE \V. MORRIS, OE BRAN'TORD, ONTARIO, CANADA, ASSIGNOR TO or SAMEPLACE.

G RAI N-SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 394,001, dated December4, 1888.

Application filed June 1, 1887.

To (all [chain it Will/[j GUI/C157!!! Be it known that I, GEoRoE\YILLIAM Moa- RIS, manufacturer, of the city of l irantford, in thecounty of Brant, in the Province of Ontario, Canada, have inventedcertain new and useful Improvements in Grain-Separators, of which thef0ll()\\lllg is a SpGClfiOELlllOH.

The object of the invention is to provide a straw deck-extension havinga reciprocating as well as a vertical motion when the machine inoperation for the purpose of discharging the straw out of the machineafter it has fallen thereon from the upper straw-deck, whereby any grainwhich still remains in the straw after passing over said upper deck maybe completely separated and be carried back to the shoe of thethrashing-machine, thus avoiding such loss of grain as is incidental tothe use of the tail-rake in the ordinary thrashingmachine. There is alsoa light table carried by the tapering spring-pitmen, so placed withreference to the upper straw-deck and the shoe of the machine as tointercept any straws which n'lay happen to fall through the slats of theupper deck, and thus prevent such straws from lodging in the sieve inthe shoe and causing it to clog.

Figure 1 is a side elevation of a thrashingmachine, showing theimprovements, a portion of the sheeting being removed, Fig. 2 is a planof the lower portion of the machine, with casing, upper grain-deck, &c.,removed.

Like letters of reference i ndicate similar parts in both the figures.

I11 1 and 2, A is a double-throw crank, which is connected, ashereinafter described, and gives vertical and reciprocating motion tothe upper straw-deck, B, straw-deck extension I, and the grain-deck Uand chaff-extension and tray F. The upper straw-deck, B, is attached tothe throws of the crank, as shown, by means of boxes 0.

C is a rocking arm, one end of which is piv oted to the front end of thestrmv-deck B at V, while the other end of said rocking arm is pivoted tothe frame of the machine at V. To the opposite throws of said crank Athe tapering pitmen E (see Fig. 1) are attached by means ofextension-irons G, which project outwardly in a direction parallel tothe length of the machine sufficiently far to form brack- Serial No.239,979. (No model.)

i ets G G, to which is firmly bolted the strawdeck extension I. Thisstraw-deck extension I, being rigidly attached to the brackets, requiresno supports or hangers at the rear end,

and, by reason of its peculiar mode of connection with the taperingspring-pitmen, de rives a slight vibrating motion at its rear end, iwhich has been found to very materially assist the complete separationof the grain from the straw, the grain so separated falling 1' throughonto the light tray F and thence into the shoe of the machine. Saidextension irons and brackets G are attached to the boxes G, throughwhich the cranks work. The pitmen E, which give a reciprocating motionto the grain-deck U, are tapered gradually toward the end farthest fromsaid crank-axle, (see Fig. 1,) and are firmly bolted to the bottom orside of the grain-deck U at c, this springy tapering form of pitmandoing away with a pivoted attachment at its front end, preventing lostmotion, and lessening the noise when operating the machine. Thegrain-deck U is hung at the front end upon hangers \V, pivoted at eachend, and toward its rear end by spring-hangers, as \V', attached to theouter casing of the machine, as shown.

I) in Fig. l is the chaff-extension, which is attached to the under sideof the main frame of the grain-(leek U by means of a joint at (l, and atits rear end is suspended to the main frame of the machine by means ofspringhangers This chaff-extension of course partakes of thereciprocating motion communicated to thegrain-deck I by the pitmen isattached, by means of a joint iron, J, and box, the light extension-trayF, which is also hung to mainv frame of machine by hangers K. This lighttray par-takes ot' the motion of the chaff-extension.

S is the main shoe ot' the machine, into which the grain is carried, and:4 is the discharge-spout. elevator of ordinary construction, which canries the grain to a grain scourer and smuttcr, which may be permanentlyattached to the top of the machine and placed at a convenient distanceto the rear of the spiked beater Q and cylinder R.

In Fig. 2 X is a light table resting on T is a fancasing, and L an E. Tothe rear end of the chaff-extension I) and attached to the rear ends ofthe pitmen for the purpose of intercepting straws which may fall throughthe slats of the strawdeck 13 and prevent them passing through theapertures in the chaff-extension D ("hide Fig. 1) and thence lodging inand clogging the sieve in the shoe S.

71, Fig. 2, refers to aportion of the slats in the upper straw-deck, B;

In operation the grain is fed into the cylinder R and thrashed in theordinary manner, after which it is thrown against the round beater Q,Fig. 1, which checks the flying grain and straw, assisting materially inthe separation, depositing the straw on the straw-deck B, thereciprocating motion of which carries the straw Very rapidly to the rearend of the machine toward my improved straw-deck extension upon which it'l'allsthe drop or fall much assisting to further separate any grainremaining in the straw, and the up-and-down and reciprocating motion ofthe straw-deck extension I completing the separation of the grain, thestraw passing out of the machine entirely free from grain. The grainhaving been gathered in the shoe and cleared from the chaft by theblast-fan, which should be located in the casing T, is carried to theelevator, which is of ordinary construction, said elevator carrying thegrain up to and delivering it into the hopper or mouth of agrainscourer.

The function of the chaff-extension is to effeet a still furtherseparation of the grain from the chaii and straw just before the latterare discharged from the machine. The chaff-extension has awibrating ortrembling motion, and any grain which may chance to remain in the strawis shaken through the slats and falls thence into the well, from whenceit is elevated. This chaff-extension is still further to secure thecomplete separation of the grain from the straw.

No claim is made herein to' the graincleaner, as the same forms thesubject-matter of my application Serial No. 291,306, filed November 20,1888.

\Vhat I claim as my invention is 1. In a thrashing-machine, thecrank-shaft, the straw-deck, the grain-deck, and the strawdeckextension, combined with the spring-pitmen and the extension-irons G,connected to the crank-shaft, an d formed with brackets, to which thestraw-deck extension is secured, substantially as described.

2. In a thrashing-maehine, the combination, with the crank-shaft and thespring-pitmen E, of the light table X attached to said pitmen, and theshoe S, over which said table is placed, substantially as described.

In a thrashing-machine, the combination, with the crank-shaft and thespring-pitmen E, of the light table X attached to said pitmen near theirrear ends, the chaff-extension D, and the shoe Sbeneath said table andextension, substantially as described.

4. In a thrashin g-machine, the combination, with the grain-deck, thechaff-extension D, and the light extension-tray 1*, connected to andderiving motion from said chaff-extension, of the main frame of themachine, and the spring-hangers K, attached thereto and supporting therear end of said tray, substantially as described.

Brantford, March 31, 1887.

GEORGE \V. MORRIS.

In presence of PETER PURvEs, A. E. *ATTs.

